Pull-out guidance assembly for drawers

ABSTRACT

Pull-out guidance assembly for drawers with one drawer-side pull-out rail and one body-side bearing rail each on both sides of the drawer. A fluidic damper is provided developed as a rotation damper ( 20 ). Between the bearing rail ( 4 ) and the pull-out rail ( 6 ) is displaceably disposed a center rail ( 5 ). The pull-out rail ( 6 ) is set into a drawer side wall ( 3 ) and fixed in it. The fluidic damper, which is mounted on the pull-out rail ( 6 ) or the drawer side wall ( 3 ), comprises a pinion ( 10 ), which meshes with a rack section ( 16 ) of a slider ( 8 ) movable relative to the pull-out rail ( 6 ), to the drawer side wall ( 3 ) and to the bearing rail ( 4 ). An stop ( 11 ) disposed on the bearing rail ( 4 ) is provided for the slider ( 8 ).

[0001] The invention relates to a pull-out guidance assembly for drawers with one drawer-side pull-out rail and one body-side bearing rail each on both sides of the drawer, wherein a fluidic damper developed as a rotation damper is provided and between the bearing rail and the pull-out rail, if appropriate, a center rail is displaceably disposed and the pull-out rail is preferably set into a drawer side wall and is fixed in it.

[0002] GB 2 245 158 A discloses a pull-out guidance assembly for drawers with a pull-in device and a fluidic damper developed as a rotation damper. The fluidic damper is disposed in a carriage which in the rearward moving region of the drawer can be coupled with it.

[0003] The objective of the invention is improving a pull-out guidance assembly of the above described type to the extent that the rotation damper can be disposed in its entirety in the drawer, whereby the rotation damper, together with the drawer, can also be set into the furniture body.

[0004] The objective according to the invention is solved thereby that the rotation damper is mounted on the pull-out rail or the drawer side wall and comprises a pinion gear which meshes with a toothed rack section of a slider movable relative to the pull-out rail, to the drawer side wall and to the bearing rail, wherein a body-side stop, disposed preferably on the bearing rail, is provided for the slider.

[0005] In the following, an embodiment example of the invention will be described in conjunction with the Figures of the enclosed drawings. Therein depict:

[0006]FIG. 1 a schematic diagram of a furniture body with drawers in different positions wherein one side wall of the furniture body has been omitted,

[0007]FIG. 2 the same furniture body in side view,

[0008]FIG. 3 schematically and diagrammatically a section through a furniture body and longitudinal section through the drawer side walls of drawers one disposed above the other,

[0009]FIG. 4 a longitudinal section through a drawer side wall,

[0010]FIG. 5 a section along line AA of FIG. 4, and

[0011]FIG. 6 diagrammatically and spread apart the parts of the damper and the pull-out rail.

[0012] In a furniture body 1 drawers 2 are displaceably guided by means of the pull-out guidance assembly according to the invention.

[0013] The drawers comprise on both sides one drawer side wall 3 each which cover rails 4, 5, 6 of the pull-out guidance assembly except for fastening flange 4′ of the bearing rails 4. Also covered by the drawer side wall is the damping device 14 according to the invention.

[0014] On the pull-out rail 6 is fixed a housing 7 in which is disposed a commercially available rotation damper 20, preferably with free-wheeling. On the axle of the rotation damper 20 is supported a pinion 10.

[0015] The housing 7 is provided with an undercut groove 15, in which is supported a sliding carrier 8 so as to be horizontally displaceable. The sliding carrier 8 is provided with a toothed rack section 16 which meshes with the pinion 10. A tension spring 12 is fastened, on the one hand, on sliding carrier 8 and, on the other hand, on housing 7.

[0016] A slider 8 comprises, furthermore, a slider stop 9 which projects through a slot 13 in the pull-out rail 6. On the bearing rail 4 or on its fastening flange 4′ is developed a body-side stop 11 for the slider 8.

[0017] When a drawer 2 is opened, the tension spring 12 pulls the slider 8 into the damping position. When the drawer 2 is closed, the slider stop 9 abuts the body-side stop 11, whereupon no further relative movement occurs between the slider 8 and the body [-side bearing] rail 4. However, the pull-out rail 6 is moved further toward the back together with the housing 7 and thereby the pinion 10, which rolls away on the toothed rack section 16, is rotated. Thereby the rotation damper 20, disposed in housing 7, becomes active.

[0018] The pull-out guidance assembly according to the invention can also be provided with a drawer draw-in device, such as is described for example in EP 0 391 221 B1. The spring of the draw-in device must therein always be stronger than the tension spring 12 in order for the drawer 2 to be closed reliably.

[0019] When the drawer 2 is opened, the slider 8 is brought again by the tension spring 12 into the starting position, i.e. into the damping position.

[0020] In the embodiment example a full extension is shown with center rails 5 disposed between the pull-out rails 6 and the bearing rails 4. The damping according to the invention, however, can also be applied with a simplex extension. 

1. Pull-out guidance assembly for drawers with one drawer-side pull-out rail and one body-side bearing rail each on both sides of the drawer, wherein a fluidic damper is provided developed as a rotation damper, characterized in that the rotation damper (20) comprises a pinion (10), which meshes with a toothed rack section (16) of a slider (8) movable relative to the pull-out rail (6), to the drawer side wall (3) and to the bearing rail (4), wherein a body-side stop (11) is provided for the slider (8).
 2. Pull-out guidance assembly as claimed in claim 1 , characterized in that between the bearing rail (4) and the pull-out rail (6) is displaceably disposed a center rail (5).
 3. Pull-out guidance assembly as claimed in claim 1 , characterized in that the pull-out rail (6) is set into a drawer side wall (3) and is fixed in it.
 4. Pull-out guidance assembly as claimed in claim 1 , characterized in that the rotation damper (20) is mounted on the pull-out rail (6).
 5. Pull-out guidance assembly as claimed in claim 1 , characterized in that the rotation damper (20) is mounted on the drawer side wall (3).
 6. Pull-out guidance assembly as claimed in claim 1 , characterized in that the body-side stop (11) for the slider (8) is disposed on the bearing rail (4).
 7. Pull-out guidance assembly as claimed in claim 1 , characterized in that the pull-out rail (6) and the rotation damper (20) are disposed within the drawer side wall (3).
 8. Pull-out guidance assembly as claimed in claim 1 , characterized in that the rotation damper (20) and the slider (8) are supported in a housing (7) fastened on the pull-out rail (6).
 9. Pull-out guidance assembly as claimed in claim 1 , characterized in that the rotation damper (20) and the slider (8) are supported in a housing (7) fastened on the drawer side wall (3).
 10. Pull-out guidance assembly as claimed in claim 1 , characterized in that the slider (8) is acted upon by a spring.
 11. Pull-out guidance assembly as claimed in claim 1 , characterized in that the spring is a tension spring (13) coupled to slider (8) and to housing (7). 